Results 81 to 90 of about 100,457 (323)

Volcanostratigraphic Sequences of Kebo-Butak Formation at Bayat Geological Field Complex, Central Java Province and Yogyakarta Special Province, Indonesia

Indonesian Journal on Geoscience, 2016
DOI:10.17014/ijog.3.2.77-94Bayat Complex is usually used as a work field for students of geology and other geosciences. The study area is located in the southern part of the Bayat Complex.
Sri Mulyaningsih
doaj   +1 more source

MetaMorph: Learning Metamorphic Image Transformation With Appearance Changes [PDF]

arXiv, 2023
This paper presents a novel predictive model, MetaMorph, for metamorphic registration of images with appearance changes (i.e., caused by brain tumors). In contrast to previous learning-based registration methods that have little or no control over appearance-changes, our model introduces a new regularization that can effectively suppress the negative ...
arxiv  

Archaeological Geology of Jurash, ʿAsīr Province, Southwestern Saudi Arabia

Arabian Archaeology and Epigraphy, EarlyView.
ABSTRACT The Jurash archaeological site is located on Wādī Bīshah near the city of Khamīs Mushayt in southwestern Saudi Arabia. It has a fort and other remains from the pre‐Islamic period (third century bc to early seventh century ad) and a settlement with two mosques from the Early Islamic period (early seventh to early 11th centuries ad).
James A. Harrell
wiley   +1 more source

A review on the provenance of the Voltaian Basin, Ghana: Implications for hydrocarbon prospectivity

Scientific African, 2022
The Voltaian Basin of Ghana has taken significance as a potential oil and gas basin. Since Ghana became a petroleum-producing country, every attempt is being made to understand the sedimentary basins within the country's territorial boundaries ...
Theresa Ngmenmaaloo Zobah, Caspar Daniel Adenutsi, Godfrey Chiri Amedjoe, Matthew Coffie Wilson, Cyril Dziedzorm Boateng, Jonathan Atuquaye Quaye, Samuel Erzuah, Lian Wang, Guoxiang Zhao, Hassan Karimaie, Sylvester Kojo Danuor   +10 more
doaj  

Petrography and mineral chemistry of metamorphosed mantle peridotites of Nain Ophiolite (Central Iran)

Journal of Economic Geology, 2017
Introduction Study of the petrology of the ophiolites as the relics of ancient oceanic lithosphere, is a powerful tool to reconstruct Earth’s history. Mantle peridotites have mostly undergone alteration and serpentinization to some extent.
Nargess Shirdashtzadeh, Ghodrat Torabi, Ramin Samadi   +2 more
doaj   +1 more source

In Situ Boron Isotope Determination in Amphibole by LA‐MC‐ICP‐MS: Matrix Effects and New Potential Reference Materials

Geostandards and Geoanalytical Research, EarlyView.
Key Points An analytical strategy for determining boron isotope ratios in Ca‐amphiboles using LA‐MC‐ICP‐MS is presented. Accurate δ11B results can be achieved using the USGS BHVO‐2G glass as the calibrating reference material. Two proposed Ca‐amphibole RMs exhibit good homogeneity with δ11B intermediate measurement precision of 2.86‰ and 3.96 (2s). The
Enrico Cannaò, Gianluca Sessa, Samuele Agostini, Massimo Tiepolo   +3 more
wiley   +1 more source

Petrology of Oligocene Ghaleh Yaghmesh granitoids in the west of Yazd province

Journal of Economic Geology, 2017
Introduction The generation and evolution of granitic magmas has been a hot debated subject among petrologists. The diversity of their origin has led different authors to propose that these rocks are not simple in their origin and might be generated in
Bahareh Fazeli, Mahmoud Khalili, Roy Beavers, Mahin Mansouri Esfahani, Zahra Loghmani Dastjerdi   +4 more
doaj   +1 more source

Mineral chemistry of garnet in pegmatite and metamorphic rocks in the Hamedan area

Journal of Economic Geology, 2015
Introduction The area of this study is located near Hamadan within the Sanandaj - Sirjan tectonic zone. In the Hamadan area, consisting mainly of Mesozoic plutonic and metamorphic rocks, aplites and pegmatites locally contain garnets.(Baharifar et
Ahmad Ahmadi Khalaji, Zahra Tahmasbi
doaj  

Object-based Metamorphic Testing through Image Structuring [PDF]

arXiv, 2020
Testing software is often costly due to the need of mass-producing test cases and providing a test oracle for it. This is often referred to as the oracle problem. One method that has been proposed in order to alleviate the oracle problem is metamorphic testing.
arxiv  

A Cautionary Tale About Not ‘Joining the Dots’ to Infer Anticlockwise P$$ P $$‐T$$ T $$ Paths

Journal of Metamorphic Geology, EarlyView.
ABSTRACT Uncertainty surrounds the cause and interpretation of anticlockwise pressure‐temperature (P$$ P $$–T$$ T $$) paths in metamorphic terranes. Here, we focus on the viability of a commonly proposed mechanism—magmatic heat transfer during thickening—using a case study of the Roineabhal terrane in Scotland, where such an anticlockwise P$$ P $$–T ...
Owen Weller, Joseph Benson, Alex Copley
wiley   +1 more source